将视图控制器链接到镜像

我的应用程序有一个Facebook登录屏幕，它在登录后显示个人资料图片，用户名，电子邮件和注销按钮。将视图控制器链接到镜像

我试图找出如何资料图片与的UIView或的UIImageView链接当前用户（这曾经是更适用，因为我用一个UIView称为FBProfilePictureView）在主VC叫HomeViewController。这里是代码我有LoginViewController有FB信息要求和返回。一旦输入了用户信息，我也可以继续使用HomeViewController。

LoginViewController.h：

#import <UIKit/UIKit.h> 
#import <QuartzCore/QuartzCore.h> 
#import <FacebookSDK/FacebookSDK.h> 

@interface LoginViewController : UIViewController <FBLoginViewDelegate> 

@property (weak, nonatomic) IBOutlet FBLoginView *loginButton; 

@property (weak, nonatomic) IBOutlet UILabel *lblLoginStatus; 

@property (weak, nonatomic) IBOutlet UILabel *lblUsername; 

@property (weak, nonatomic) IBOutlet UILabel *lblEmail; 

@property (weak, nonatomic) IBOutlet FBProfilePictureView *profilePicture; 

@property (strong, nonatomic) IBOutlet UIImageView *loginwallpaper; 
@property (strong, nonatomic) IBOutlet UIImageView *loggedinwallpaper; 

@property (strong, nonatomic) IBOutlet UIImageView *FBlogin; 
@property (strong, nonatomic) IBOutlet UIImageView *FBlogout; 

@end

这里是LoginViewController.m

#import "LoginViewController.h" 

@interface LoginViewController() 

- (void)toggleHiddenState:(BOOL)shouldHide; 

@end 

@implementation LoginViewController 

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    [self toggleHiddenState:YES]; 
    self.lblLoginStatus.text = @""; 

    self.loginButton.readPermissions = @[@"public_profile", @"email"]; 
    self.loginButton.layer.cornerRadius = 0; 
    [self.loginButton.layer setBorderWidth:0.0f]; 

    self.loginButton.delegate = self; 


    // Do any additional setup after loading the view. 
} 

-(void)toggleHiddenState:(BOOL)shouldHide{ 
    self.lblUsername.hidden = shouldHide; 
    self.lblEmail.hidden = shouldHide; 
    self.profilePicture.hidden = shouldHide; 
    self.loggedinwallpaper.hidden = shouldHide; 
    self.FBlogout.hidden = shouldHide; 
} 

-(void)toggleUnhiddenState:(BOOL)shouldShow{ 
    self.loggedinwallpaper.hidden = NO; 
} 

-(void)loginViewShowingLoggedInUser:(FBLoginView *)loginView{ 
    self.lblLoginStatus.text = @""; 

    [self toggleHiddenState:NO]; 
    [self toggleUnhiddenState:YES]; 
} 

-(void)loginViewShowingLoggedOutUser:(FBLoginView *)loginView{ 
    self.lblLoginStatus.text = @""; 

    [self toggleHiddenState:YES]; 
} 

-(void)loginViewFetchedUserInfo:(FBLoginView *)loginView user:(id<FBGraphUser>)user{ 
    NSLog(@"%@", user); 
    self.profilePicture.profileID = user.objectID; 
    self.lblUsername.text = user.name; 
    self.lblEmail.text = [user objectForKey:@"email"]; 

    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 
    UITabBarController *tabcontroller = (UITabBarController *)[storyboard instantiateViewControllerWithIdentifier:@"HomeViewController"]; 
    [self presentViewController:tabcontroller animated:YES completion:nil]; 
} 

-(void)loginView:(FBLoginView *)loginView handleError:(NSError *)error{ 
    NSLog(@"%@", [error localizedDescription]); 
} 

- (void)didReceiveMemoryWarning { 
    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 

/* 
#pragma mark - Navigation 

// In a storyboard-based application, you will often want to do a little preparation before navigation 
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { 
    // Get the new view controller using [segue destinationViewController]. 
    // Pass the selected object to the new view controller. 
} 
*/ 

@end

所有张贴在这里的其他问题还没有真的帮了我 - 他们已经太模糊了。

如果有人可以告诉我如何将这个个人资料图片连接到一个UIImageView或UIView的HomeViewController那真是太棒了！我知道这很容易，我只是感到沮丧，这是给我这样一个问题

（我知道我需要使用prepareForSeuge方法，我只是不知道如何完成此语法的语法。）

来源

2015-06-19 Will Von Ullrich

它会帮助你。转到HomeViewController.xib，并通过拖动来放置UIView。

现在，选择该视图并在XCode的右侧单击第三个标识为Identity Inspector。这里设置类名为FBProfilePictureView然后尝试。

来源

2015-06-20 21:08:35 VRAwesome

如果你想diplay在FBProfilePictureView图像，然后

XIB /故事板 - >身份检查 - >类的名称 - > FBProfilePictureView

-(void)loginViewFetchedUserInfo:(FBLoginView *)loginView user:(id<FBGraphUser>)user{ 
    NSLog(@"%@", user); 
    self.profilePicture.profileID = user.id; 
}

如果你想在imageview的

queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH,0); 

dispatch_async(queue, ^{ 


      // Load UImage from URL 
      NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://graph.facebook.com/%@/picture?width=200&height=200", user.id]]; 

      NSData *data = [NSData dataWithContentsOfURL:url]; 

      // Then to set the image it must be done on the main thread 
      dispatch_sync(dispatch_get_main_queue(), ^{ 
       UIImage *image = [UIImage imageWithData:data]; 
       yourImageView.image = image 
       image = nil; 
      }); 

     });

显示

来源

2016-07-20 06:16:14 Bhoomi

将视图控制器链接到镜像

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